Scattered across southwest Montana where it is known from alpine slopes in several mountain ranges. Overall abundance and distribution is still poorly known, though it is likely to be more common than collections indicate.

Population Size

Score2 - Small: Generally 2,000-10,000 individuals.

CommentEstimated as population levels from specimen collections are largely unknown.

Range Extent

Score1 - Peripheral, Disjunct or Sporadic Distribution in MT: Widespread species that is peripheral, disjunct or sporadically distributed within MT such that it occurs in <5% of the state (<7,500 sq. miles or the combined area of Beaverhead and Ravalli Counties) or is restricted to 4-5 sub-basins.

Area of Occupancy

Environmental Specificity

Trends

Score0-1 - Stable to Minor Declines:

CommentTrends unknown, though populations are likely stable or experiencing only minor declines.

Threats

Score0-1 - Low to Medium.

Intrinsic Vulnerability

Score1 - Moderate Vulnerability: Specific biological attributes, unusual life history characteristics or limited reproductive potential makes the species susceptible to extirpation from stochastic events or other adverse impacts to its habitat and slow to recover.